Constant temperature and humidity test box

Abstract

The utility model relates to the technical field of test equipment, and discloses a constant-temperature and constant-humidity test box which comprises a box body, and a test cavity is formed in the box body; the temperature and humidity adjusting system is arranged in the box body, and the temperature and humidity adjusting system comprises a heating unit, a refrigerating unit, a humidifying unit and a dehumidifying unit; the temperature and humidity sensor arrays are arranged on the inner walls of the two sides of the test cavity and used for monitoring temperature and humidity data of different positions in the test cavity in real time; according to the utility model, the temperature and humidity conditions in the test cavity are comprehensively monitored in real time through the temperature and humidity sensor array, and the temperature and humidity adjusting system is accurately controlled by the controller in the control cabinet based on the data, so that the temperature and humidity of the test cavity can be accurately adjusted. The test requirements with harsh temperature and humidity environment requirements can be met, and the accuracy of test results is ensured.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a constant temperature and humidity test chamber. Background Technology

[0002] In numerous fields such as scientific research, industrial production, and product quality testing, it is often necessary to simulate different temperature and humidity environments to test various items, materials, or equipment in order to evaluate their performance, reliability, and stability under specific conditions. Traditional constant temperature and humidity test chambers have some shortcomings, such as:

[0003] 1. The temperature and humidity control accuracy is not high enough, making it difficult to meet the testing requirements of some tests with extremely stringent temperature and humidity requirements, such as the testing of high-precision electronic components, which may lead to changes in test results.

[0004] 2. Uneven internal temperature and humidity distribution: Within the large space of the test chamber, there are significant differences in temperature and humidity at different locations, resulting in inconsistent environmental conditions experienced by the tested samples at different locations, which affects the scientific validity and reliability of the test.

[0005] Therefore, it is necessary to develop a new type of constant temperature and humidity test chamber that can overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a constant temperature and humidity test chamber to solve the problems of low temperature and humidity control accuracy and uneven internal temperature and humidity distribution mentioned in the background art.

[0007] The constant temperature and humidity test chamber provided in this application adopts the following technical solution:

[0008] A constant temperature and humidity test chamber includes a chamber body, wherein a test chamber is provided inside the chamber body;

[0009] A temperature and humidity control system is installed inside the cabinet, and the temperature and humidity control system includes a heating unit, a cooling unit, a humidification unit, and a dehumidification unit;

[0010] A temperature and humidity sensor array is installed on both inner walls of the test chamber to monitor temperature and humidity data at different locations within the test chamber in real time.

[0011] A control cabinet is located on one side of the enclosure. Inside the control cabinet is a controller, which is electrically connected to each unit of the temperature and humidity control system and the temperature and humidity sensor array. The controller performs precise control of the temperature and humidity control system based on the data collected by the temperature and humidity sensor array.

[0012] Preferably, the heating unit includes a plurality of heating wires evenly distributed on the outer wall of the back of the test chamber. The heating wires are arranged in a spiral array and their surfaces are coated with a thermally conductive ceramic coating.

[0013] Preferably, the refrigeration unit adopts a compressor refrigeration system, including a compressor unit, a condenser and multiple evaporators, with the multiple evaporators arranged on the outer walls of both sides and the outer wall of the bottom of the test chamber.

[0014] Preferably, the humidification unit includes a flow meter, a spray pipe, and multiple atomizing nozzles. The flow meter is installed on the top outer wall of the chamber, and the water supply end of the flow meter is connected to the spray pipe. The spray pipe is fixedly installed on the top outer wall of the chamber. The multiple atomizing nozzles penetrate the chamber and extend into the interior of the test chamber. The top ends of the multiple atomizing nozzles are installed on the bottom outer wall of the spray pipe and are connected to the spray pipe. The suction end of the flow meter is connected to an external water source through a water supply pipe.

[0015] Preferably, the dehumidification unit includes a circulating fan, an air supply pipe, and a circulating hood. The circulating fan is fixedly installed on the top outer wall of the housing. The air outlet of the circulating fan is connected to the circulating hood through two air supply pipes. The circulating hood is fixedly installed on the inner wall of the test chamber. Multiple guide plates are fixedly connected to the outer wall of the circulating hood.

[0016] Preferably, a bracket is fixedly installed on the outer wall of the control cabinet away from the cabinet body, a display is fixedly installed on the outer wall of the bracket, and a keyboard and mouse are placed on the bracket below the display. The keyboard and mouse are connected to the controller inside the control cabinet through a connecting cable.

[0017] Preferably, the outer wall of the chamber facing the test chamber is hinged with a door, and the outer wall of the door is provided with an observation window.

[0018] Preferably, the bottom outer wall of the box is equipped with multiple casters, and the multiple boxes are evenly distributed at the four corner edges of the box.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] The temperature and humidity sensor array comprehensively and in real time monitors the temperature and humidity inside the test chamber, and the controller inside the control cabinet uses this data to precisely control the temperature and humidity regulation system, which can meet the test requirements with harsh temperature and humidity environment requirements and ensure the accuracy of test results.

[0021] The matrix distribution of the temperature and humidity sensor array and the rational layout of each temperature and humidity control unit, such as the uniform distribution of heating wires and evaporators, ensure that the temperature and humidity differences at different locations within the test chamber are minimal, guaranteeing the consistency of the environmental conditions of the tested samples and improving the scientific rigor and reliability of the test. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0023] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the application;

[0024] Figure 3 This is a first partial sectional view of an embodiment of the application;

[0025] Figure 4 This is a second partial sectional view of an embodiment of the application.

[0026] Explanation of reference numerals in the attached drawings: 1. Chamber; 2. Test chamber; 3. Chamber door; 4. Observation window; 5. Heating unit; 51. Heating wire; 6. Refrigeration unit; 61. Compressor unit; 62. Condenser; 63. Evaporator; 7. Humidification unit; 71. Spray pipe; 72. Atomizing nozzle; 73. Flow meter; 74. Water supply pipe; 8. Dehumidification unit; 81. Circulating fan; 82. Air supply pipe; 83. Circulating fan hood; 84. Deflector plate; 9. Control cabinet; 91. Bracket; 92. Monitor; 93. Keyboard; 94. Mouse; 10. Temperature and humidity sensor array; 11. Casters. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a constant temperature and humidity test chamber. (Refer to...) Figure 1-4 A constant temperature and humidity test chamber includes a chamber body 1, and a test chamber 2 is provided inside the chamber body 1, with the test chamber 2 located near the upper part of the interior of the chamber body 1.

[0029] The temperature and humidity control system is located inside the cabinet 1. The temperature and humidity control system includes a heating unit 5, a cooling unit 6, a humidification unit 7, and a dehumidification unit 8.

[0030] Temperature and humidity sensor array 10 is installed on both inner walls of the test chamber 2 to monitor temperature and humidity data at different locations within the test chamber 2 in real time.

[0031] Control cabinet 9 is located on one side of enclosure 1. The controller is installed inside control cabinet 9. The controller is electrically connected to each unit in the temperature and humidity control system and the temperature and humidity sensor array 10. The controller performs precise control of the temperature and humidity control system based on the data collected by the temperature and humidity sensor array 10.

[0032] Reference Figure 3The heating unit 5 includes multiple heating wires 51 evenly distributed on the outer wall of the back of the test chamber 2. The heating wires 51 are arranged in a spiral array and their surfaces are coated with a thermally conductive ceramic coating to improve heating efficiency and make the heat distribution more uniform.

[0033] Reference Figure 1 , 3 Compared with 4, the refrigeration unit 6 adopts a compressor refrigeration system, including a compressor unit 61, a condenser 62 and multiple evaporators 63. The compressor unit 61 and the condenser 62 are both installed inside the housing 1 and located below the test chamber 2. A mounting bracket is provided between the compressor unit 61 and the condenser 62, and the mounting bracket is fixedly connected to the inner wall of the housing 1. Multiple evaporators 63 are arranged on the outer walls of both sides and the bottom of the test chamber 2 to increase the contact area with the air in the test chamber 2 and improve the refrigeration effect.

[0034] The compressor refrigeration principle utilizes the latent heat of vaporization of liquids such as Freon to absorb heat from the object being cooled, thus achieving refrigeration. Liquid entering the evaporator 63 through the expansion valve absorbs latent heat of vaporization from the surrounding object and evaporates. After evaporation, it becomes a low-temperature, low-pressure gas, which is then drawn into the compressor unit 61. After compression by the compressor unit 61, it becomes a high-temperature, high-pressure gas and enters the condenser 62, where it is cooled into a high-pressure liquid. It then returns to the evaporator 63 through the expansion valve, and this cycle repeats continuously. Cooling is achieved by absorbing heat from a low-temperature area and releasing heat from a high-temperature area. This is existing technology and will not be elaborated further. It is worth noting that... (Refer to...) Figure 1 The hot air generated by the compressor unit 61 is discharged through multiple heat dissipation holes near the bottom front outer wall of the housing 1.

[0035] Reference Figure 3 The humidification unit 7 includes a flow meter 73, a spray pipe 71, and multiple atomizing nozzles 72. The flow meter 73 is installed on the top outer wall of the housing 1, and the water supply end of the flow meter 73 is connected to the spray pipe 71. The spray pipe 71 is fixedly installed on the top outer wall of the housing 1. The multiple atomizing nozzles 72 penetrate the housing 1 and extend into the interior of the test chamber 2. The top of the multiple atomizing nozzles 72 is installed on the bottom outer wall of the spray pipe 71 and is connected to the spray pipe 71. The suction end of the flow meter 73 is connected to an external water source through a water supply pipe 74. The flow meter 73 can adjust the pressurized water supply to accurately control the humidification amount according to the needs. During humidification, the flow meter 73 draws external water into the spray pipe 71 through the water supply pipe 74. The spray pipe 71 pressurizes the water and sprays it into the test chamber 2 through the multiple atomizing nozzles 72 to increase the humidity in the test chamber 2.

[0036] Reference Figure 4The dehumidification unit 8 includes a circulating fan 81, an air supply pipe 82, and a circulating hood 83. The circulating fan 81 is fixedly installed on the top outer wall of the housing 1. The air outlet of the circulating fan 81 is connected to the circulating hood 83 through two air supply pipes 82. The circulating hood 83 is fixedly installed on the inner wall of the test chamber 2. Multiple guide plates 84 are fixedly connected to the outer wall of the circulating hood 83. When the circulating fan 81 is working, it draws external air into the circulating hood 83 through the air supply pipe 82. The circulating hood 83 is divided into an air inlet and an air outlet. The air drawn in by the circulating fan 81 enters the test chamber 2 through the air inlet, and at the same time, the air in the test chamber 2 is drawn out through the air outlet of the circulating hood 83 by the circulating fan 81, so that the air in the test chamber 2 can circulate and achieve dehumidification.

[0037] A bracket 91 is fixedly installed on the outer wall of the control cabinet 9 away from the box 1. A display 92 is fixedly installed on the outer wall of the bracket 91. A keyboard 93 and a mouse 94 are placed on the bracket 91 below the display 92. The keyboard 93 and the mouse 94 are connected to the controller inside the control cabinet 9 via connecting cables. The bracket 91 is used to display data, and the keyboard 93 and the mouse 94 facilitate the operation of the controller inside the control cabinet 9 by the operator.

[0038] The outer walls of the chamber 1 and the test chamber 2 are hinged with a door 3. The outer wall of the door 3 is provided with an observation window 4. The observation window 4 is made of double-layer vacuum glass, which can not only facilitate the observation of the test chamber, but also further play a role in heat preservation.

[0039] Multiple casters 11 are installed on the bottom outer wall of the box 1. Multiple boxes 1 are evenly distributed at the four corners of the box 1. The multiple casters 11 facilitate the overall movement of the box 1.

[0040] The implementation principle of a constant temperature and humidity test chamber according to an embodiment of this application is as follows: When using this constant temperature and humidity test chamber, the temperature and humidity sensor array 10 collects temperature and humidity data at various locations within the test chamber 2 in real time and transmits this data to the controller in the control cabinet 9. The controller analyzes and judges based on preset temperature and humidity values ​​and the received actual temperature and humidity data. If the temperature and humidity within the test chamber 2 are lower than the preset values, the controller will activate the heating unit 5 and / or the humidification unit 7 to perform heating and humidification operations; if the temperature and humidity within the test chamber 2 are higher than the preset values, the controller will activate the cooling unit 6 and / or the dehumidification unit 8 to perform cooling and dehumidification operations. Through this precise control method, the test chamber 2 can always maintain the required constant temperature and humidity state, and due to the comprehensive monitoring of the temperature and humidity sensor array 10 and the reasonable layout and design of each adjustment unit, the problem of uneven internal temperature and humidity distribution can be effectively solved.

[0041] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0042] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0043] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A constant temperature and humidity test chamber, characterized in that, include: The box (1) has a test chamber (2) inside it; A temperature and humidity control system is installed inside the cabinet (1). The temperature and humidity control system includes a heating unit (5), a cooling unit (6), a humidifying unit (7), and a dehumidifying unit (8). A temperature and humidity sensor array (10) is set on both sides of the inner wall of the test chamber (2) to monitor the temperature and humidity data at different locations in the test chamber (2) in real time; A control cabinet (9) is located on one side of the enclosure (1). A controller is installed inside the control cabinet (9). The controller is electrically connected to each unit in the temperature and humidity control system and the temperature and humidity sensor array (10). The controller performs precise control of the temperature and humidity control system based on the data collected by the temperature and humidity sensor array (10).

2. The constant temperature and humidity test chamber according to claim 1, characterized in that: The heating unit (5) includes multiple heating wires (51) evenly distributed on the back outer wall of the test chamber (2). The heating wires (51) are arranged in a spiral array and their surfaces are coated with a thermally conductive ceramic coating.

3. The constant temperature and humidity test chamber according to claim 1, characterized in that: The refrigeration unit (6) adopts a compressor refrigeration system, including a compressor unit (61), a condenser (62) and multiple evaporators (63), with the multiple evaporators (63) arranged on the outer walls of both sides and the outer wall of the bottom of the test chamber (2).

4. A constant temperature and humidity test chamber according to claim 1, characterized in that: The humidification unit (7) includes a flow meter (73), a spray pipe (71) and multiple atomizing nozzles (72). The flow meter (73) is installed on the top outer wall of the box (1). The water supply end of the flow meter (73) is connected to the spray pipe (71). The spray pipe (71) is fixedly installed on the top outer wall of the box (1). Multiple atomizing nozzles (72) penetrate the box (1) and extend into the interior of the test chamber (2). The top of the multiple atomizing nozzles (72) is installed on the bottom outer wall of the spray pipe (71) and connected to the spray pipe (71). The suction end of the flow meter (73) is connected to an external water source through a water supply pipe (74).

5. A constant temperature and humidity test chamber according to claim 1, characterized in that: The dehumidification unit (8) includes a circulating fan (81), an air supply pipe (82), and a circulating hood (83). The circulating fan (81) is fixedly installed on the top outer wall of the housing (1). The air outlet of the circulating fan (81) is connected to the circulating hood (83) through two air supply pipes (82). The circulating hood (83) is fixedly installed on the inner wall of the test chamber (2). Multiple guide plates (84) are fixedly connected to the outer wall of the circulating hood (83).

6. A constant temperature and humidity test chamber according to claim 1, characterized in that: A bracket (91) is fixedly installed on the outer wall of the control cabinet (9) away from the box (1). A display (92) is fixedly installed on the outer wall of the bracket (91). A keyboard (93) and a mouse (94) are placed on the bracket (91) below the display (92). The keyboard (93) and the mouse (94) are connected to the controller inside the control cabinet (9) through a connecting cable.

7. A constant temperature and humidity test chamber according to claim 1, characterized in that: The outer wall of the box (1) facing the test chamber (2) is hinged with a box door (3), and the outer wall of the box door (3) is provided with an observation window (4).

8. A constant temperature and humidity test chamber according to claim 1, characterized in that: The bottom outer wall of the box (1) is equipped with multiple casters (11), and the multiple boxes (1) are evenly distributed at the four corner edges of the box (1).

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